What's your go-to travel game?

Although tomorrow I'll be the one doing the driving, a road-trip usually signals time to pull out the 3DS. Whether it's on a Vita, 3DS, PSP, DS or mobile device, I want to know your game. Shout out what title you'd jump at playing if you were about to be stuck in a car (or plane) for long hours. If I had the chance tomorrow would be filled with FE: Awakening, however, thats not out yet. In all reality I would probably end up playing Pokemon Black 2, or attempting a speed run of Ocarina of Time3DS!

Why didn't I have this as a kid?

Or... have upcoming travel plans that coincide with a big release date? I know if I were to drive anywhere in March you couldn't pry Luigi's Mansion out of my hands if you tried.